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(No Model.) M. T. 8v M. O. REEVES.

HUB POP. SPLIT PULLEYS. No. 403,858. Patented May 21.1889.

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' UNITED STATES PATENT OFFICE.

MARSHAL T. REEVES AND MILTON O. REEVES, OF COLUMBUS, INDIANA, ASSIGN ORSTO THE REEVES PULLEY COMPANY, OF SAME PLACE.

HUB FOR SPLIT PULLEYS.

SPECIFICATION forming part of Letters Patent No. 403,858, dated May 21,1889.

Application filed September 24, 1888. Serial No. 286,210. (No model.)

To all whom, it may concern:

Be it known that we, MARsHAL T. REEVES and MILTON O. REEVES, citizens ofthe United States, residing at Columbus, in the county of Bartholomewand State of Indiana, have invented a new and useful Improvement in Hubsfor Split Pulleys, of which the following is a specification.

Our invention relates to an improved metallic hub for wooden splitpulleys.

The object of our improvement is to provide a metallic hub formed in twosections, which may be separated diametrically for the purpose ofputting the hub onto a shaft without passing it over the end thereof,and which, when secured to the side of a diametricallydivided pulley,shall operate to hold the two sections of the pulley together, all ashereinafter fully described.

The accompanying drawings illustrate our invention.

Figure l represents a side elevation of a split pulley adapted toreceive our improved hub and having its two sections separated. Fig. 2represents a side elevation of the same having the hub secured thereto.Fig. 3 represents a central section of the same. Fig. 4 represents aside elevation of one section of the metallic hub; and Fig. 5, a sectionof the hub at x, Fig. 2.

A Vand B represent the two semi-cylindrical sections of a split' pulley,which is built up of several wooden segments, laid one upon the otherand secured together, portions of one section projecting to form tenonsc and d, which enter corresponding recesses in the other section.

The hub consists of two like sections, E and F, each of which consistsof a semicircular plate, G, having projecting from one side asemi-cylindrical boss, II, an annular iiange, I, projecting from theopposite side, an annular lug, J which projects beyond the straight edgeof the section on one side of the central opening, la, for the shaft,and a corresponding recess, Z, on the opposite side of said opening.4When sections E and F are placed together to form a complete hub, thelug J of each enters the recess Z of the other, and the two sections areheld together by means of screws m m, which pass through the boss H andlugs .I of both sections, the screw-thread being cut in both, as clearlyshown in Fig. 5. Screws m m also serve as set-screws to secure thepulley on a shaft.

In constructing a pulley with a hub or hubs like that above described,the two sections E and F, forming a hub, are rst put together anddrilled and tapped to receive the set-screws by which they are heldtogether. The center hole is then bored to fit the shaft, and the inner:tace of plate G and flange I are turned true therewith. The twosections A and B, forming the pulley, are then secured together, and anannular groove, n, adapted to receive and lit the Iiange I of the hub,is turned in one or both sides of the web of the pulley, the intentionbeing to use two hubs on large pulleys. A central hole, o, adapted toreceive the shaft easily, is at the same time bored in the pulley. Themetallic hub is then placed on the web of the pulley with its line ofdivision at right angles to that of the pulley, and its ilange'I fittinginto the groove n, and thus securely locking the two sections of thepulley together. The hub or hubs are then securely fastened to thepulley by bolts p p, which pass through the plate G of the hub and theweb, the arrangement being such in a pulley tenoned together, as aboveshown, that the bolts pass also through the tenons, thus furthersecuring the parts together. The whole is then mounted on a suitableInandrel and the pulley turned true.

We do not herein claim the construction of pulley-sections herein shown,as that is embraced in the subject-matter of our application, Serial No.286,2Q9, now pending.

IVe claim as our invention 1. The combination, in a split pulley, of twosubstantially semi-cylindrical diametrically-separable sections,eachprovided on its side with a semicircular annular groove, and ametallic hub adapted to be secured to the web of said pulley, and havingan annular flange adapted to iit in -said grooves,whereby the twopulley-sections are held together, substantially as specified.

2. A hub for split pulleys, consisting of two substantiallysemi-cylindrical diametrically- IOO Yseparable metallic sections, eachhaving an annular lug projecting beyond the line of division, and' acorresponding recess receding from said line, the recess in each sectionbe- 5 ing adapted to receive the lug of the other section, and screwspassing through the body ot the hub into said lugs, whereby the twosections are secured together, substantially as specified.

3. A hub for split pulleys, consisting of two substantiallysemi-cylindrical diametricallyseparable metallic sections, each having'an annular lug projecting beyond the line of division, and acorresponding recess receding 15 from said line, the recess in eachsection being adapted toreceive the lug of the other section, screwspassing through the body of the hub and through said lugs, whereby thetwo sections are secured together and the hub nalso thereby secured to ashaft, and an annular flange projecting from the hub and adapted toenter the web of the pulley,whereby the yhub is adapted to hold the twosections of a split pulley together, all substantially as speci- MARSHALT. REEVES.

MILTON O. REEVES.

Witnesses: CHARLES F. REEVES,

1F. SCHWAETZKOPF, Jr.

